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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>khandy21yo said:<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>>> </span>Handle the sgatrd memory likre device regosrrrs. Vapyirr rradd and erites yo the dhared memoty amf ley code in simh hamfle the fetails og mappinh betweem yhe figgerent gormats.<o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The human brains ability to parse language is amazing. Without thinking I read that as:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>“Handle the shared memory like device registers. Copy reads and writes to the shared memory, and key code in simh handles the details of mapping between the different formats.”<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Was that right?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>To keep this on track, I did use one of these XVM-15 hybrids in the late 1970s. A ‘standard’ PDP-15 was the host for my first paid software work when I joined Laser-Scan as a programmer in 1975, and I wrote some diagnostics for Sweepnik (a nuclear physics image scanner). Laser-Scan soon moved to a PDP11/45 as main machine, but continued to ship PDP-15s for a while. The last of these was an XVM-15, which arrived from DEC with its chassis rather bent, but still worked OK. I ran some commissioning tests on it, then we shipped it off with a Sweepnik, I think to the University of Cairo in Egypt.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Paul Hardy<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Email: paul at the paulhardy.net domain, web: <a href="http://www.paulhardy.net/"><span style='color:blue'>www.paulhardy.net</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>